Octahedron Plus

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z"/><path d="m21.498 12.911.206-.208a.984.984 0 0 0 0-1.407l-8.845-8.948a1.233 1.233 0 0 0-1.718 0l-8.845 8.949a.984.984 0 0 0 0 1.407l8.845 8.949a1.234 1.234 0 0 0 1.718-.001l.08-.081"/><path d="M2 12c.004.086.103.178.296.246l8.845 2.632c.459.163 1.259.163 1.718 0l2.634-.784m5.41-1.61.801-.238c.195-.07.294-.156.296-.243M12 2.12v19.76M16 19h6m-3-3v6"/></svg>